Swabbing-barrel attachment



April 7, 1931.

S. W GORDON SWABBING BARREL ATTACHMENT Filed Feb. 1'7, 1930 VJ QIII/rill!!! E: M I II III Patented Apr. 7, 1931 UNITED STAThZd PATENTOFFICE SWABBING-BARREL ATTACHMENT Application filed February 17, 1230.Serial No. 425,142.

Thi invention relates to new and useful improvements in well apparatus,and particularly to devices used in connection with swabs for oil wells.

The principal object of the invention is to provide a device of thischaracter wherein the swab is operated by means of a cable, and whereinthe pulley which is mounted on the upper end of the well, is automaticin its operat1on, whereby to readily permit the removed and replacementof the swab.

In devices of this character, heretofore, the swab had to be supportedby hand, while the pulley was moved out of the way, and

1;; in view of the fact that the swab weighed sixty pounds, or more,such a method was arduous.

In the present device this laborious operation is obviated, because of t1e fact that the operator does not have to hold the swab, and does nothave to move the pulley by hand.

@ther objects and advantages will be appar nt from the followingdescription when taken in connection with the accompanying as drawing.

In the drawing: 7

Figure 1 is a side elevation of the invention.

Figure 2 is a top plan view of the same.

Figure 3 is a VQI'blCZLl sectional view on the line 3*?) of Figure 2.

Referring particularly to the accompanying drawing, represents a portionof the swabbing barrel, used in connection with an oil well, during theprocess of drilling same. Screwed into the upper end of the barrel is anipple 11, which has a portion of the side of its upper end cut out, asindicated at 12. Disposed around the remaining portion of c;- the saidupper end of the barrel is a band 13, the ends of which extendhorizontally outwardly from the barrel, past the cut out 12, and beyondthe side of said barrel. 1 Carried by the outer end portions of the saida; band ends are the pivot bolts 13, which pivotally support the yoke14, whose bight portion is arranged to lie outwardly of the ends of theband. Disposed transversely through the intermediate portions of thearms of the to yoke is a pivot orshaft 15, on which is mounted thegrooved wheel or pulley 16, said pulley being arranged between the saidends of the band. In the upper edge of each 01' said band ends, inwardlyof the pivots 13, is a notch 1'? which is arranged to receive the endportions of the shaft 15, between the pulley and the arms of the yoke,as clearly seen in the top plan View, Figure 2, when the yoke is swungdown into the position shown in full lines in Figure 1. This places thepulle partly within the nipple, so that the ca 1e 18, which runs in saidpulley, is disposed in the approximate center of the barrel, so that theswab may be more eiiiciently operated in said barrel. To the cable isconnected the swab 19, which is operable within the barrel, in a mannerwell known.

In the normal working position of the device, the yoke 14; is in loweredhorizontal position, as shown in the full lines in Figure 1, with theshaft ends seated in the notches of the band ends, and the pulley 16lying partly within the barrel. The cable operates over or through thepulley, to cause the reciprocation of the swab 19, in the barrel. lVhenit is desired to remove the swab from the bar rel, the operator drawssaid swab upwardly in the barrel until said swab engages with thepulley, when further upward movement of the swab will cause the yoke toswing over into the position shown in dotted lines, in Figure 1, therebyreadily permitting the swab to be taken out. Upon again placing the swabin the barrel, and lowering same therein, the yoke, with its pulley,will fall back into its full line position of Figure 1, by gravity. Thusthe operator does not have to hold the heavy swab, While placing thepulley out of the way of said swab, nor does he have to touch thepulley, thereby rendering the device automatic in its action, andsimplifying the operation of removing and replacing the swab, as well aslessening the time and labor required for this operation. 95

Formed in the shaft 15 is a lubricant passage, which is shown at 20, andwhich eX- tends through one end of said shaft. Removably secured in thisend of the passage is a pressure lubricant cup 21, for feeding lubricantto the shaft, and to the hub of the wheel 16.

The yoke let is provided with a handle 22, on its bight portion, so thatthe wheel may be swung into and out of the casing 11 by hand.

hat is claimed is:

1. An attachment for the working barrel of a well swab comprising abracket on the 10 barrel, and a pulley carrying frame mounted on thebracket for movement to place the pulley partly within the barrel and toremove the same therefrom.

An attachment for the working barrel 15 of awell swab comprising apulley supported on the barrel and movable toward the barrel by gravityand movable away from the bare. by the swab.

3. An attaehment for the working barrel :0 of a well swab comprising anipple mounted on the upper end of the barrel, said nipple having anopening in one side thereof, and a pulley mounted on the nipple formovemcnt into and out of the opening.

4. An attachment for the working barrel of a well swab oomprising a swabrope engaging pulley mounted thereon, said pulley being movable by theoutcoming swab into a position away from the barrel and movable so bygravity toward the barrel after insertion of the swab into the barrel.

In testimony whereof, I flifiX my signature.

SAMUEL WV. GORDON.

